Clock Worm

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Last KS (2003) An actograph and its use in the study of foraging behaviour in the benthic polychaete, Nereis virens Sars. J Exp Mar Biol Ecol 287:237–248 I have seen installations where the thermostat was left over from an old installation and not actually connected to a new boiler at all, or a faulty thermostat has had its wiring altered to bridge it out of circuit and keep the heating on. From what you describe the second would seem more of a possibility in your case. If you are running a combi boiler, the second you turn on a hot tap, shower or heating, the boiler should produce hot water. Wilson WH (1991b) The importance of epibenthic predation and ice disturbance in a Bay of Fundy mudflat. Ophelia Suppl 5:507–514 Thijssen R, Lever AJ, Lever J (1974) Food composition and feeding periodicity of 0-group plaice ( Pleuronectes platessa) in the tidal area of a sandy beach. Neth J Sea Res 8:369–377

Wilson WH (1991a) The foraging ecology of migratory shorebirds in marine soft sediment communities: the effects of episodic predation on prey populations. Am Zool 31:840–848Clark S (1987) Long term biological rhythmicity and reproduction: an experimental study of Harmothoe imbicata (L.) (Polychaeta: Polynoidae). Ph.D. thesis, University of Newcastle, Newcastle upon Tyne Conversely, if the room thermostat is too close to a draught, the thermostat will think the room is much colder than it is and turn the boiler on. Garwood PR, Olive PJW (1978) Environmental control of reproduction in the polychaetes Eulalia viridis and Harmothoe imbricata. In: McLusky DS, Berry AJ (eds) 12th European symposium on marine biology, vol 1. Pergamon Press, Stirling, pp 321–339 Lewbart GA, Riser NW (1996) Nuchal organs of the polychaete Parapionosyllis manca (Syllidae). Invertebr Biol 115:286–298

If there’s a fault with the thermostat, it might not communicate with the boiler, or tell it to come on. It’s evening at the northern tip of the Red Sea, in the Gulf of Aqaba, and Tom Shlesinger readies to take a dive. During the day, the seafloor is full of life and color; at night it looks much more alien. Shlesinger is waiting for a phenomenon that occurs once a year for a plethora of coral species, often several nights after the full moon. Caspers H (1961) Beobachtung über Lebensraum and Schwamperiodizität des Palolowurmes Eunice viridis. Int Rev Ges Hydriobiol 46:175–183

Then, to activate the programme, you’ll have to push a button that may be labelled as “Start” or “Set”— again, please refer to the boiler timer manual for instructions specific to your model. What to Do If Your Boiler Timer Still Isn’t Working Tessmar-Raible K, Raible F, Arboleda E (2011) Another place, another timer: marine species and the rhythms of life. Bioessays 33:165–172 Olive PJW (1971) Ovary structure and oogenesis in Cirratulus cirratus (Polychaeta: Cirratulidae). Mar Biol 8:243–260 Palmer JD (1997) Dueling hypotheses: circatidal versus circalunidian battle basics. Chronobiol Int 14:337–346